Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ce07245bdf7c82a2e50d2784902ca51cecc4fef0ab93911caea5b2c90e86bb35' 
  AND token = '11ZHfULXuPF5EJlPDuN+628ooEhi8KygkQ38XRtYEgs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}